Boiler wall



Patented May 2, 19.33l

r'lonras fr. MURRAY, or. BnooxLYN, NEW yoax; rosari; ianannaxfmum. ,momY n MURRAY. Ja., AND kJOHN F. MURRAY, ExEoUrons 'or sain Tnonas E.Munn-Y, -f DEcEAsED, AssIGNons'ro nE'rnoroLrrAN .ENGINEERING ,y COMPANY,A oonrona- 'rIoN oF NEW 'Yonx Bouma WALL. y y

` l' 'Apliucaummea vJanuary 1o, 1am.` seriaiNaaaau's. f y

This invention'relates to boilers and in particular to an improved typeof wall including a series of hollow tubes provided with "anchoragemembers adapted to beimbedded in-a body of insulating lmaterial formingpart of the wall.` y

i An embodimentof the invention is illustrated in the accompanyingdrawing in which- V' Fig. 1 is ahorizontal section-through one portionof the `boiler wall;

Fig. 2`is a face'view of the boiler wall with parts broken awa-yininterest of clearness;

Fig. 3 is ya detailed .y view illustrating a modification. f

Referring in detail to the drawing, my improved boilerfwallincludesaseries of tubes 10 arranged alon side one another, each tube'having detachab y secured lthereto an anchorage member 12 extendingllengthwise of the tu e and arranged with one edge adjacent' the tube.Each anchorage member/'is formed with aplurality of angular exten- 2,'5sions 14 which are conveniently formed by bending alternate portions ofthe plate from which the anchorage is formed to brin it substantially atright angles to the flat ace of the member.

The anchorage members are detachably secured to the tubes 10 by means ofcli s 16, the

` portions 18 of which are curved to t the cylindrical surface of thetube. These clips are provided with rearwardly extending portions 20which are apertured to permit the passage therethrough of bolts .22 bywhich the clips are snugly clamped against the tubes. The clips arepreferably bevelled asV at 24 yso as to provide a clearance space 26betweenthe surface of the member 12 and the inner portion of the clip sothat when the nut 27 is ing action is exerted on both the tube and theVanchorage member. The anchorage members i 12 are imbedded in a body ofinsulating ma- I terial 30. And between the tubes in some cases Iprovide a thin sheet of iron or other suitable metal indicated at 32.This may be in the form of perforated plates as shown or may be expandedmetal lath or the like which 1s provlded with openings to permitcementitious or-plastic material to be inte' all keyed` to the plate. Tothe surface oft e p ates 32 cated at 36, I preferably build alayer ofce'-y ment'to cover the exposed ends of theclips 16.

" .In the construction above,` described the cli s make a friction gripon tubes 10 and the en s ofthe clips extend beyond the diametral facesofthe tube. vInstead of this arran'gement Iv may provide theralternative construction s hown Fig. y3 wherein the tubes 10a areprovided with` outwardly extending lugs 10by which coact with recesses18a formed in modifedclips 186.I Withthis arrangement there `is provideda positive interlock between cli s 18b`wl11eh-does not deend'upon'havingt e;

ends of the clips exten beyond the diametral points ofthe tube.

` In a previous ay plication No. 642,427 filed.v

Such a combination ofr aftubular water-wally with'ins'ulating materialapplied'to'the outside of`it,`fhas important advantages set out in theaforesaid application.

The present invention representsy an improveme'nt infease and rapidityof erection of such-walls bythe use of comparatively sim! ple devicesforwattaching the anchorage memers to the tubes'.y The attaching meansis a clamp of p' comparatively vsmall. cost whichy we can afford toimbed in the insulating ma` terial.

Also in a previousiapplication No. 61,386of October 9, 1925, I havedescribedand claimed the use of tubes having flanges thereon which areimbedded in the outer plastic material.y l

While I have describedquite specificallyy the structuraldetails of theembodiment of theinvention.illustrated, it` is to be understood ythatvarious modifications may Abe made byfthose skilled in the art withoutdeparting from the invention as defined in the appended claims.

vloo

opposite the insulating body, I also apply a 55 layer offire-resistantcement- 34'and as indi- What I claim is 1. A boiler wallcomprising a plurality of tubes arranged alongside one another, aninsulating body adjacent the tubes, anchorage members extendinglengthwise of the tubes and clamp members fulcruming on said anchoragemembers at spaced intervals for securing the tubes tol said anchoragemembers with a friction grip.

l2. A boiler wall comprising a plurality of tubes arranged alongside oneanother, an insulating body adjacent the tubes, anchorage memberscomprising elongated plates whose inner edges point towardthe centers ofthe tubes and having anchorage projections extending from their outeredges and detachable clips for securing said anchorage members to saidtubes.

3. Avboile'r wall comprising a plurality of tubes arranged side by side,a. body of insulating material filling the space between the tubes,anchorage members embedded therein, clips detachably secured to both thetubes and the anchorage members. i i

4. In a boiler wall of the character described the combination of ananchorage member extending lengthwise of the tube, a clip having oneportion arranged to neatly fit the tube and another portion constructedand arranged to fulcrum on said anchorage member and means for clampingsaid clip to said anchorage member.

5 A boiler wall comprising a plurality of tubes arranged side by sidewith spaces between them, metal lath between said tubes, a body ofinsulating material engaging said lath and said tubes on one side and abod of heat resisting cement between said tubes on the opposite side ofsaid lath. and anchorage members imbedded in said insulating body andmeans for securing the anchorage members to said tubes.

6. A boiler wall comprising a plurality of tubes arranged side by sidewith spaces between them, metal lathV between said tubes, a body ofinsulating material engaging Said lath and said tubes on one side and abody of heat resisting cement between said tubes on the opposite side ofsaid lath, and anchorage members extending lengthwise of said tubescomprising plates having angular projections extending therefroml andimbedded in said insulating body, clips having portions which fulcrum onsaid anchorage members and means for clamping said clips to both thetubes and the anchorage members.

7 A boiler wall comprising a plurality of vertically extending tubesalongside of one another, anchorage members having elongated websattached to the tubes with the inner edge of the web adjacent to thetube, andk an insulating body over the outer side of ksaid tubes, saidanchorage members having at the outer portion of their webs lateralextensions embedded' in said insulating body and serving to support andhold it against fallin away from the tubes.

8. boiler wall comprising a plurality of vertically extending tubesalongside one another, an insulating body over the outer side of saidtubes, and means for suporting said insulating body from said tubescomprising separate anchorage members frictionally secured to saidtubes.

' 9.l A boiler wall comprising a plurality of vertically extending tubesalongside one another, an insulating body over the outer side ot saidtubes, anchorage members embedded in said insulating body and clipsconnected to said anchorage members and directly and detachably engagingthe tubes and exerting a friction grip thereon.

10. A boiler wall comprising a plurality of vertically extending tubesalongside one another, an insulating body over the outer side of saidtubes, anchorage members embedded in said insulating body and securingclips detachably connected to said anchorage members and directly anddetachably engaging the tubes, the clips and the tubes havingcomplimentary interlocking portions.

1'1., A boiler wall comprising a plurality of vertically extending tubesalongside one another, an insulating body over the outer side of saidtubes, anchorage members embedded in said insulating bodyand clips eachhaving a seat portion which detachably engages only a portion of theperiphery of a tube and means detachably securing said clips to saidanchorage members.

In witness whereof, I have hereunto signed rTHOMAS E. MURRAY.

y my name.

